﻿
const composition = {
    /** 省份校验 */
    checkProv(val) {
        const pattern = /^[1-9][0-9]/;
        const provs = { 11: "北京", 12: "天津", 13: "河北", 14: "山西", 15: "内蒙古", 21: "辽宁", 22: "吉林", 23: "黑龙江 ", 31: "上海", 32: "江苏", 33: "浙江", 34: "安徽", 35: "福建", 36: "江西", 37: "山东", 41: "河南", 42: "湖北 ", 43: "湖南", 44: "广东", 45: "广西", 46: "海南", 50: "重庆", 51: "四川", 52: "贵州", 53: "云南", 54: "西藏 ", 61: "陕西", 62: "甘肃", 63: "青海", 64: "宁夏", 65: "新疆", 71: "台湾", 81: "香港", 82: "澳门" };

        return pattern.test(val) && !!provs[val]
    },
    /** 出生日期校验 */
    checkDate(val) {
        const pattern = /^(18|19|20)\d{2}((0[1-9])|(1[0-2]))(([0-2][1-9])|10|20|30|31)$/;
        if (pattern.test(val)) {
            const year = val.substring(0, 4);
            const month = val.substring(4, 6);
            const date = val.substring(6, 8);
            const date2 = new Date(year + "-" + month + "-" + date);
            return date2 && date2.getMonth() == (parseInt(month) - 1)
        }
        return false;
    },
    /** (机构、性别、校验码)校验 */
    checkCode(val) {
        const p = /^[1-9]\d{5}(18|19|20)\d{2}((0[1-9])|(1[0-2]))(([0-2][1-9])|10|20|30|31)\d{3}[0-9Xx]$/;
        const factor = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2];
        const parity = [1, 0, 'X', 9, 8, 7, 6, 5, 4, 3, 2];
        const code = val.substring(17);
        if (p.test(val)) {
            let sum = 0;
            for (let i = 0; i < 17; i++) {
                sum += val[i] * factor[i];
            }

            return parity[sum % 11] == code.toUpperCase()
        }
        return false;
    }
}

// 正则表达式
const regular = {
    // 手机号码
    EXP_PHONE: /^1[3456789]\d{9}$/,
    // 邮箱
    EXP_EMAIL: /^([a-zA-Z]|[0-9])(\w|-)+@[a-zA-Z0-9]+.([a-zA-Z]{2,4})$/
}

/** 字符串类型校验 */
const isString = (value) => typeof value === 'string';

/** 手机号校验 */
const isPhone = (value) => regular.EXP_PHONE.test(value);

/** 邮箱校验 */
const isEMail = (value) => regular.EXP_EMAIL.test(value);

/** 身份证校验 */
const isIDCard = (value) => {
    const { checkProv, checkDate, checkCode } = composition;
    if (checkCode(value)) {
        var date = value.substring(6, 14);
        if (checkDate(date)) {
            if (checkProv(value.substring(0, 2))) {
                return true;
            }
        }
    }
    return false;
}

/** 非值校验
 * @param {any} value 校验值
 * @param {boolean} clearSpace 是否清空空字符，value是字符串时有效，默认 false
 * @returns true-非值，false-有效值
 */
const isEmpty = (value = null, clearSpace = false) => {
    // 对常见的“非”值(不包含bool型)，直接返回原来值
    const empty = [null, undefined, NaN, ""]
    if (empty.includes(value)) return true

    // 清理空格、制表符后再校验
    if (isString(value) && clearSpace) {
        return value.replace(/\s+/g, '').length == 0
    }

    return false
}

/** 非值校验(多值)
 * @param values 校验集合 []
 * @param clearSpace 是否清空空字符，value是字符串时有效，默认 false
 * @returns true-非值，false-有效值
 */
const isEmptys = (values, clearSpace = false) => {
    if (values instanceof Array) {
        return !values.length || values.some(value => isEmpty(value, clearSpace))
    }
    return true
}

/** 空对象校验 */
const isEmptyObj = (value) => [null, undefined].includes(value) ? true : Object.keys(value).length == 0;

/** 校验是否是对象 */
const isObject = value => !isEmpty(value) && typeof value === 'object' && value.constructor === Object;

/** 校验是否是数字类型 */
const isNumber = value => !isNaN(value / 1) && typeof value === 'number';

/** 校验是否是boolean类型 */
const isBoolean = value => typeof value === 'boolean';

/** 校验是否是Array */
const isArray = value => value instanceof Array;

/** 校验是否是null */
const isNull = value => value === null;

/** 校验是否是undefined */
const isUnde = value => value === void 0;

// 数字类型校验
const validateNumber = (tag) => {
    return (rule, value, callback) => {
        if (isEmpty(value, true)) {
            return callback(new Error('请输入' + tag));
        }

        const int_value = parseInt(value);

        if (!isNaN(int_value) && int_value > 0 && value.toString().indexOf('.') == -1) {
            callback();
        } else {
            callback(new Error(tag + '为正整数'));
        }
    };
}